Some hypnotists view suggestion as a form of communication that is directed primarily to the subject's conscious mind, whereas others view it as a means of communicating with the "unconscious" or "subconscious" mind. These concepts were introduced into hypnotism at the end of the 19th century by Sigmund Freud and Pierre Janet. Sigmund Freud's psychoanalytic theory describes conscious thoughts as being at the surface of the mind and unconscious processes as being deeper in the mind. Braid, Bernheim, and other Victorian pioneers of hypnotism did not refer to the unconscious mind but saw hypnotic suggestions as being addressed to the subject's conscious mind. Indeed, Braid actually defines hypnotism as focused (conscious) attention upon a dominant idea (or suggestion). Different views regarding the nature of the mind have led to different conceptions of suggestion. Hypnotists who believe that responses are mediated primarily by an "unconscious mind", like Milton Erickson, make use of indirect suggestions such as metaphors or stories whose intended meaning may be concealed from the subject's conscious mind. The concept of subliminal suggestion depends upon this view of the mind. By contrast, hypnotists who believe that responses to suggestion are primarily mediated by the conscious mind, such as Theodore Barber and Nicholas Spanos, have tended to make more use of direct verbal suggestions and instructions.
In the everyday trance of a daydream or movie, an imaginary world seems somewhat real to you, in the sense that it fully engages your emotions. Imaginary events can cause real fear, sadness or happiness, and you may even jolt in your seat if you are surprised by something (a monster leaping from the shadows, for example). Some researchers categorize all such trances as forms of self-hypnosis. Milton Erickson, the premier hypnotism expert of the 20th century, contended that people hypnotize themselves on a daily basis. But most psychiatrists focus on the trance state brought on by intentional relaxation and focusing exercises. This deep hypnosis is often compared to the relaxed mental state between wakefulness and sleep.
In 2011, a Russian "evil hypnotist" was suspected of tricking customers in banks around Stavropol into giving away thousands of pounds worth of money. According to the local police, he would approach them and make them withdraw all of the money from their bank accounts, which they would then freely give to the man. A similar incident was reported in London in 2014, where a video seemingly showed a robber hypnotizing a shopkeeper before robbing him. The victim did nothing to stop the robber from looting his pockets and taking his cash, only calling out the thief when he was already getting away.
It is far easier to describe what hypnosis is not rather than to describe what it is. For example, it is not one person controlling the mind of another. The patient is not unconscious and does not lose control of his or her faculties. People will not do things under hypnosis that they would be unwilling to do otherwise. The person being hypnotized is always in control. The hypnotized person decides how deep the trance will be, what suggestions will be accepted, and when to awaken. Therefore, a hypnotyized person cannot be forever "lost" if the therapist should fall dead during an induction or while the patient is deep in trance.
The regulation of the hypnotherapy profession in the UK is at present the main focus of UKCHO, a non-profit umbrella body for hypnotherapy organisations. Founded in 1998 to provide a non-political arena to discuss and implement changes to the profession of hypnotherapy, UKCHO currently represents 9 of the UK's professional hypnotherapy organisations and has developed standards of training for hypnotherapists, along with codes of conduct and practice that all UKCHO registered hypnotherapists are governed by. As a step towards the regulation of the profession, UKCHO's website now includes a National Public Register of Hypnotherapists who have been registered by UKCHO's Member Organisations and are therefore subject to UKCHO's professional standards. Further steps to full regulation of the hypnotherapy profession will be taken in consultation with the Prince's Foundation for Integrated Health.
We have, however, come a long way from the days of Mesmer’s animal magnetism. The increasing interest in mindfulness meditation suggests that mainstream acceptance of the mind-body connection is growing. This year, two well-received books by serious science journalists, Marchant’s Cure, out in January, and Erik Vance’s Suggestible You, out this month, explore this territory — the demonstrable results of hypnosis, faith, and even magic — long dismissed as pseudoscience or explained away as the placebo effect. Just last month, NPR reported that placebo pills work even when people know they’re taking a placebo. “Those are real, biological changes underlying those differences in your symptoms,” Marchant told Science of Us earlier this year. It’s all in your mind. But that doesn’t mean it’s not real.
It is used for a wide variety of applications, and studies into its efficacy are often of poor quality which makes it difficult to determine efficacy. Several recent meta-analyses and systematic reviews of the literature on various conditions have concluded that the efficacy of hypnotherapy is "not verified", that there is no evidence or insufficient evidence for efficacy.